I just did a 50% water change just to see if it seems to slow things down and potentially bring the pH back to normal. The clerk said most people have had bad luck with RRFs except one customer. Now I’m starting to wonder if I’m gonna join the ranks of those who have killed them. Small tank, 4.2 gal/ ~16L
I needed fertilizers! I got some co2 + other stuff that frees up iron (flourish excel) and the RRFs exploded happily. They went from dying to sending out new leaves like crazy in about a week. Quite the turnaround. I think the water was just nutrient-poor for floating/non soil plants.